Easy there...I wasn't referring to your post, but another that recommended the 'basic system' and 'no additional padding required'. Of course there is still the issue that the original poster is asking about a product that nobody other than myself (in this thread) has used.
I am not sure what you meant that it is "not about the padding" - as I mentioned, the padding and the cinch seem to be the only difference between the Infinity and the Eclipse systems?!?!:
From the Halcyon website:
Cinch Quick-adjust (patent pending); infinitely adjustable with a simple push or pull of the webbing vs. Complete Secure Harness; infinitely adjustable and designed to fit you perfectly
Halcyon Deluxe Harness Pads featuring a Storage Pak for convenient stowage of lift devices vs. Halcyon Storage Pak for convenient stowage of lift devices
Both "systems" come with:
Choice of Aluminum or Stainless Steel Backplate; standard or small size
ACB10 weight pockets
Stainless steel Single-Tank Adapter with two cam straps; accommodates a weighted insert